TGF beta receptor 1

TGF beta receptor 1 (also known as TGFBR1) is a type of protein that in humans is encoded by the TGFBR1 gene. It is a member of the TGF beta receptor family, a group of proteins that play crucial roles in cellular functions such as growth, proliferation, differentiation, and apoptosis.

Function

TGFBR1 is a serine/threonine protein kinase that forms a heteromeric complex with type II TGF-beta receptors when bound to TGF-beta, transducing the TGF-beta signal from the cell surface to the cytoplasm. The encoded protein is a transmembrane protein that has a protein kinase domain, forms a heterodimeric complex with another receptor protein, and binds TGF-beta. This receptor/ligand complex phosphorylates proteins, which then enter the nucleus and regulate the transcription of a subset of genes related to cell proliferation.

Clinical significance

Mutations in TGFBR1 can result in various medical conditions. For instance, they can cause Loeys-Dietz syndrome, a genetic disorder characterized by aortic aneurysms. Mutations can also lead to multiple self-healing squamous epithelioma (MSSE), a condition where individuals develop multiple skin tumors, but which heal by themselves over time.

Interactions

TGFBR1 has been shown to interact with various proteins, including SMAD2, SMAD3, and SMAD7. These interactions are crucial for the transduction of the TGF-beta signal from the cell surface to the cytoplasm.

See also

• Transforming growth factor beta
• TGF beta receptor 2
• Loeys-Dietz syndrome
• Multiple self-healing squamous epithelioma

External links

• GeneCards - TGFBR1